Maybe grass feels pain, maybe every blade suffers as much as we would, who knows? Nobody knows. We DO know, however, that a cow or a pig feels pain and suffers just as we would. I'd rather do what I can for those I KNOW are suffering than not do anything to help anyone because grass MIGHT suffer!!! What sort of logic is that? Besides, even if you did truly believe grass suffers just as much as a cow, veganism is still the only logical option, as 10 times more plants need to be killed to feed a person on beef than to feed them on plants alone, owing to the energy lost in conversion.